查看他人的留言动态报500

app/controllers/users_controller.rb

@@ -1704,7 +1704,7 @@ class UsersController < ApplicationController
         sql = "user_id = #{@user.id} and ((container_type = 'Project' and container_id in #{user_project_ids} and act_type in #{project_types}) or (container_type = 'Course' and container_id in #{user_course_ids} and act_type in #{course_types}))"
       end
       if User.current != @user
-        sql += "and user_id = #{@user.id}"
+        sql += " and user_id = #{@user.id}"
       end
     else
       if User.current != @user